Question

newtons second law quick check
which situation describes a negative acceleration? (1 point)
a diver jumping off a diving board and falling to the swimming pool below
a bicycle increasing its velocity as the rider pedals harder
a runner slowing down at the end of a race
a swimmer moving at a constant velocity

Explanation:

• Acceleration is the rate of change of velocity. Negative acceleration (deceleration) occurs when an object's velocity is decreasing.
• A diver jumping off a diving board is accelerating downwards due to gravity (positive acceleration in the downward direction).
• A bicycle increasing its velocity has positive acceleration.
• A runner slowing down has a decrease in velocity, so there is negative acceleration.
• A swimmer moving at a constant velocity has zero acceleration.

Answer:

a runner slowing down at the end of a race